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Tornado Wind and Atmospheric Pressure Change Effects
This chapter presents design criteria and procedures developed to ensure an adequate representation of tornado effects on nuclear power plants. It discusses the use of a tornado wind flow model for the estimation of wind pressures on structures and considers atmospheric pressure change loading. Recent experimental work on the modeling of tornadoes and of the pressures they induce on buildings is briefly reviewed. Facilities aimed to simulate tornado flows have been developed since the early in the early 1970s. Their objective is to produce vortex flows with a strong rotation combined with a radial sink flow. From the non‐dimensional Navier‐Stokes equations in cylindrical coordinates, Lewellen established that such flows depend upon three non‐dimensional parameters. It appears that aerodynamic pressures induced by tornadoes on lateral walls of low‐rise buildings may differ in some cases than those induced by straight winds.
Tornado Wind and Atmospheric Pressure Change Effects
This chapter presents design criteria and procedures developed to ensure an adequate representation of tornado effects on nuclear power plants. It discusses the use of a tornado wind flow model for the estimation of wind pressures on structures and considers atmospheric pressure change loading. Recent experimental work on the modeling of tornadoes and of the pressures they induce on buildings is briefly reviewed. Facilities aimed to simulate tornado flows have been developed since the early in the early 1970s. Their objective is to produce vortex flows with a strong rotation combined with a radial sink flow. From the non‐dimensional Navier‐Stokes equations in cylindrical coordinates, Lewellen established that such flows depend upon three non‐dimensional parameters. It appears that aerodynamic pressures induced by tornadoes on lateral walls of low‐rise buildings may differ in some cases than those induced by straight winds.
Tornado Wind and Atmospheric Pressure Change Effects
Simiu, Emil (author) / Yeo, DongHun (author)
Wind Effects on Structures ; 389-398
2019-02-19
10 pages
Article/Chapter (Book)
Electronic Resource
English